Spa Treatment’s HAS Moist Lotion is a lotion that contains several key ingredients for optimal results. This combination of ingredients make the foundation of the skin moist, and help keep moisture locked in for soft, supple, younger-looking skin. HAS is Spa Treatment’s human stem cell culture medium formula. This contains Arbutin placenta, six kinds of collagen, and five kinds of hyaluronic acid. These luxurious ingredients are combined together to create the ultimate anti-aging product.